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Added support for EdDSA signature.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2023-08-22 17:10:03 +02:00
parent 22d8793683
commit faef2dc278
7 changed files with 66 additions and 39 deletions
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18
src/hsm/cmd_derive_asym.c
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@@ -53,13 +53,13 @@ int cmd_derive_asym() {
return SW_WRONG_LENGTH();
}
if (apdu.data[0] == ALGO_EC_DERIVE) {
mbedtls_ecdsa_context ctx;
mbedtls_ecdsa_init(&ctx);
mbedtls_ecp_keypair ctx;
mbedtls_ecp_keypair_init(&ctx);
int r;
r = load_private_key_ecdsa(&ctx, fkey);
r = load_private_key_ec(&ctx, fkey);
if (r != CCID_OK) {
mbedtls_ecdsa_free(&ctx);
mbedtls_ecp_keypair_free(&ctx);
if (r == CCID_VERIFICATION_FAILED) {
return SW_SECURE_MESSAGE_EXEC_ERROR();
}
@@ -70,7 +70,7 @@ int cmd_derive_asym() {
mbedtls_mpi_init(&nd);
r = mbedtls_mpi_read_binary(&a, apdu.data + 1, apdu.nc - 1);
if (r != 0) {
mbedtls_ecdsa_free(&ctx);
mbedtls_ecp_keypair_free(&ctx);
mbedtls_mpi_free(&a);
mbedtls_mpi_free(&nd);
return SW_DATA_INVALID();
@@ -78,22 +78,22 @@ int cmd_derive_asym() {
r = mbedtls_mpi_add_mod(&ctx.grp, &nd, &ctx.d, &a);
mbedtls_mpi_free(&a);
if (r != 0) {
mbedtls_ecdsa_free(&ctx);
mbedtls_ecp_keypair_free(&ctx);
mbedtls_mpi_free(&nd);
return SW_EXEC_ERROR();
}
r = mbedtls_mpi_copy(&ctx.d, &nd);
mbedtls_mpi_free(&nd);
if (r != 0) {
mbedtls_ecdsa_free(&ctx);
mbedtls_ecp_keypair_free(&ctx);
return SW_EXEC_ERROR();
}
r = store_keys(&ctx, HSM_KEY_EC, dest_id);
if (r != CCID_OK) {
mbedtls_ecdsa_free(&ctx);
mbedtls_ecp_keypair_free(&ctx);
return SW_EXEC_ERROR();
}
mbedtls_ecdsa_free(&ctx);
mbedtls_ecp_keypair_free(&ctx);
}
else {
return SW_WRONG_DATA();